1. Organometallic and Organometalloid Chemistry Department National Research Centre 33 El‐Bohouth St. (former El Tahrir St.), Dokki Giza P.O. 12622 Egypt
2. Pesticide Chemistry Department National Research Centre Giza Egypt
3. Department of Tanning Materials and Leather Technology National Research Centre Giza Egypt
4. Pharmaceutical Chemistry Department, Faculty of Pharmacy Cairo University Giza Egypt
5. Pharmaceutical Chemistry Department, School of Pharmacy New Giza University Cairo Egypt